[7.4] SEO

[nichanunpong]

• The site should use SEO-conscious structure, including page titles, headings, and reasonable semantic layout.
• Content should remain indexable and readable by search engines.

https://docs.google.com/document/d/1ccU1g2kFSfRMDI0DIs58jbcaWEJvJJHTGB7bpmDFOvc/edit?usp=sharing